A fair bit of disruption by the look of it :

Line problem in the Kennington area.
Train services between Oxford and Didcot Parkway are being disrupted due to a broken down train in the Kennington area.Short notice alterations and delays of up to 60 minutes can be expected.

Train services between London Paddington and Oxford are currently being terminated and started from Didcot Parkway.

08:55 Oxford to London Paddington due 10:30
This train has been revised.It will no longer call at: Twyford, Maidenhead, Slough, Langley, Iver, West Drayton, Hayes & Harlington, Southall and Ealing Broadway.

09:20 Oxford to London Paddington due 11:00
This train will be started from Didcot Parkway.It will no longer call at: Oxford, Radley and Culham.This is due to an earlier broken down train.

09:20 Oxford to London Paddington due 11:00
This train has been revised.It will no longer call at: Twyford, Maidenhead, Slough, Langley, Iver, West Drayton, Hayes & Harlington, Southall and Ealing Broadway.This is due to an earlier broken down train.

09:49 Reading to London Paddington due 10:42
This train has been revised.It will additionally call at: Langley, Iver and Southall.

09:55 Oxford to London Paddington due 11:30
This train has been revised.It will additionally call at: Culham.

10:19 Reading to London Paddington due 11:12
This train has been revised.It will additionally call at: Langley, Iver and Southall.

10:51 London Paddington to Oxford due 11:51
This train has been cancelled.This is due to an earlier broken down train.

You've hit on favorite gripe of mine which I may have raised elsewhere on this forum is why do we not have a standard coupler in the UK. After teh Us have buckeyes and airbarakes since 1909 or thereabouts. It's not long ago we still had Mark 1 vacuum stock on the mainline (not that there's anything wrong with the vacuum brake).

We nearly got here on the Southern with buckeyes EP brakes and standard control wires. Then the PEPS came along.

Now there are even different versions of the same make of coupler let alone different types ofcouplers.

There aren't even standard control wires, you can only couple a Turbo to 158 one way round otherwise you don't get a brake as one has 9 wires the other 8. Even though teh mechanical bit is the same.

I believe the Electrostars on the Southestern and Southern have different couplers.

Best assisstance:

73 on diesel pushing 47 and 6 from Basingstoke to Reading coupled with buckeye to last coach.

08 (REading pilot) pulling 47 and 6 from Tilehurst to Reading it went wrong line down the up relief.

Being pushed in a cross country DMU from Gloucester to Swindon with a 37 considerably faster than 70 mph,  speedo in back cab was hard on stop mark.